B

**between: point B is between points A and C
if AB + BC = AC.**

**biconditional statement: a compound statement that
says one sentence is true if and only **

** if
the other sentence is true.**

**binary number system: the number system that uses
only 0's and 1's. The places in the **

** binary
numbers are .......2 ^{n}.......2^{5} , 2^{4,}
2^{3}, 2^{2}, 2^{1}, 2^{0}.**

**binomial: an algebraic expression that is the sum of
two terms.**

**binomial theorem: the theorem that tells how to expand
the expression ( a + b)^{n.}**

**bisect: to cut something in half.**